package com.pagemodel.oldservlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.List;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet(value={"/s","/a"})
public class OldServlet extends HttpServlet {

	private String id = "ganhx";
	private String pw = "ganhx";
	
	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		this.doPost(request, response);
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		
		response.setHeader("content-type","text/html;charset=UTF-8");//防止乱码
		response.setCharacterEncoding("UTF-8"); //防止乱码

		String  user =request.getParameter("user");
		String password = request.getParameter("password");
		
		String forward;  
		if(user==null||user.trim().isEmpty()) {
			forward="error.jsp";  
			RequestDispatcher rd=request.getRequestDispatcher(forward);  
	        rd.forward(request,response); 
		}
		if(password==null||password.trim().isEmpty()) {
			forward="error.jsp";  
			RequestDispatcher rd=request.getRequestDispatcher(forward);  
	        rd.forward(request,response); 
		}

		if(!id.equals(user)) {
			response.getWriter().print("该用户名未注册！");
		}
		
		if(id.equals(user)&&!pw.equals(password)) {
			response.getWriter().print("该用户名密码不正确！");
		}
		
		if(id.equals(user)&&pw.equals(password)) {
			forward="index.jsp";  
			RequestDispatcher rd=request.getRequestDispatcher(forward);  
	        rd.forward(request,response); 
		}
		
	}

}
